Please Help! Should I Activate my iPhone 3GS in Snowbreeze?

I have an iPhone 3GS (old bootrom) that was purchased in the US with a 2 year contract from AT&T. The problem is that I am in a foreign country for the next couple of months and I depend on an unlock. I wanted to upgrade to iOS 4.1 using Snowbreeze, so I wouldn't have to update my baseband.

My question is, in snowbreeze should I check the "activate my iPhone" box?, if I don't then what happens?

So I can activate using my original AT&T SIM card and then unlock with ultrasn0w so I can use it with my foreign SIM card?

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Yes. It's best to activate with official sim, even one w/o service. Using hackivate can cause push notification problems. So, keep that old sim in a safe place in case you need to re-use it. And, personally, I wouldn't use Snowbreeze. To many horror story about it.

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